LNC2G183MSEJ

The LNC2G183MSEJ from Nichicon is an aluminum electrolytic capacitor in the LNC series, featuring a screw-terminal, radial-can package designed for high-current industrial power applications. With a rated capacitance of 18,000 µF at 400 V and a polarized design, it is intended for use in inverter circuitry and industrial power supplies where high ripple handling and long service life are required.

Built for demanding ripple and charge-discharge loading, the LNC2G183MSEJ combines a smaller-sized LNC-series footprint with high ripple-current capability and a rated operating range of –40°C to +85°C. It is RoHS compliant under the stated directives.

Key Features

• Capacitance & Voltage — 18,000 µF (18 mF) nominal capacitance with a 400 V rated voltage and capacitance tolerance of ±20% (120 Hz, 20°C).
• High Ripple-Current Capability — Rated ripple currents of 48.2 A at 120 Hz and 67.48 A at 100 kHz to support heavy ripple loading in power conversion environments.
• Endurance / Load Life — Designed for 5,000 hours of operation at 85°C with DC bias plus rated ripple current; post-test limits include capacitance change within ±20% and leakage current at or below initial specified value.
• Charge–Discharge Durability — Meets endurance of charge–discharge behavior after 50 million cycles (ΔV = rated voltage × 0.3, 3 Hz), with capacitance and loss characteristics retained within specified limits.
• Operating Temperature Range — Continuous rated use from –40°C to +85°C for industrial ambient conditions.
• Screw-Terminal, Radial Can Package — Robust screw-terminal mounting for secure high-current connections; package configured as radial can with screw terminals for industrial assemblies.
• Leakage Current Specification — After 5 minutes’ application of rated voltage at 20°C, leakage current is specified as not more than 3√(V) µA or 5 mA, whichever is smaller.
• Series Design Advantages — LNC-series smaller-sized construction while providing higher ripple current capability compared with predecessor series, intended for compact high-power designs.
• RoHS Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Dimensions — Size: L 20.5 × D 9 cm (package dimensions provided for mechanical integration).

Typical Applications

• Industrial Power Supplies — Bulk energy storage and smoothing in high-voltage industrial power supply rails where sustained ripple current is common.
• Inverter Circuitry — DC-link and filtering support for general inverter designs requiring high capacitance at elevated voltages.
• AC Servomotor Regeneration — Handling high-frequency regenerative voltages for AC servomotor systems with frequent charge/discharge cycles.
• General Inverter Systems — Energy buffering and ripple suppression in motor drives and power conversion equipment operating under continuous ripple stress.

Unique Advantages

• High Ripple Handling: Specified ripple current values at both 120 Hz and 100 kHz translate to reliable performance under heavy AC loading and high-frequency switching environments.
• Long Service Life Under Load: 5,000-hour endurance at 85°C with rated ripple current offers predictable lifetime behavior for industrial applications.
• Durable Screw-Terminal Connection: Screw-terminal mounting enables secure, low-resistance connections for high-current systems and simplifies installation in power assemblies.
• Robust Charge–Discharge Endurance: Qualified for 50 million charge–discharge cycles under specified test conditions, supporting high-speed charge/discharge demands.
• Wide Operating Temperature: –40°C to +85°C range supports a broad set of industrial ambient conditions.
• Regulatory Compliance: RoHS conformity supports integration into designs targeting restricted-substance compliance requirements.

Why Choose LNC2G183MSEJ?

The LNC2G183MSEJ is positioned for engineers designing high-voltage, high-capacitance DC-link and energy-storage stages in industrial power conversion equipment. Its combination of 18,000 µF at 400 V, high ripple-current ratings at both low and high frequencies, and a 5,000-hour endurance at 85°C provides a predictable, robust solution for inverter and regenerative motor-drive systems.

When secure, high-current connections and proven endurance are required, the screw-terminal LNC2G183MSEJ offers a compact LNC-series form factor with specifications aimed at reducing integration risk and supporting long-term operation in demanding industrial environments.

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